Department of Chemistry, Netaji Subhas University of Technology, Sector-3, Dwarka, New Delhi-110078, India.
Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl, Mizoram-796004, India.
ACS Biomater Sci Eng. 2022 Mar 14;8(3):1049-1059. doi: 10.1021/acsbiomaterials.1c01645. Epub 2022 Feb 24.
Microorganisms with extracellular electron transfer (EET) capability have gained significant attention for their different biotechnological applications, like biosensors, bioremediation, and microbial fuel cells. Current research affirmed that microbial EET potentially promotes corrosion of iron structures, termed microbiologically influenced corrosion (MIC). The sulfate-reducing (SRB) and nitrate-reducing (NRB) bacteria are the most investigated among the different MIC-promoting bacteria. Unlike extensively studied SRB corrosion, NRB corrosion has received less attention from researchers. Hence, this review focuses on EET by , a pervasive bacterium competent for developing biofilms in marine habitats and oil pipelines. A comprehensive discussion on the fundamentals of EET mechanisms in MIC is provided first. After that, the review offers state-of-the-art insights into the latest research on the EET-assisted MIC by . The role of electron transfer mediators has also been discussed to understand the mechanisms involved in a better way. This review will be beneficial to open up new opportunities for developing strategies for combating biocorrosion.
具有细胞外电子转移 (EET) 能力的微生物因其在生物传感器、生物修复和微生物燃料电池等不同生物技术应用方面的优势而受到广泛关注。目前的研究证实，微生物 EET 可能会促进铁结构的腐蚀，这种腐蚀被称为微生物诱导腐蚀 (MIC)。在不同的促进 MIC 的细菌中，硫酸盐还原菌 (SRB) 和硝酸盐还原菌 (NRB) 是研究最多的两种细菌。与广泛研究的 SRB 腐蚀不同，NRB 腐蚀受到研究人员的关注较少。因此，本篇综述重点介绍了一种普遍存在的细菌，该细菌能够在海洋栖息地和石油管道中形成生物膜。首先，全面讨论了 MIC 中 EET 机制的基本原理。然后，综述了最新的关于 菌辅助 MIC 的研究进展。还讨论了电子传递介质的作用，以便更好地理解所涉及的机制。这篇综述将有助于为开发抗生物腐蚀策略开辟新的机会。
